Fixed bug when category is not provided
Fixed bug when category is not provided

GeoNode/geonode-ratings,predatell/agon-ratings,predatell/agon-ratings,predatell/agon-ratings,rizumu/pinax-ratings,GeoNode/geonode-ratings,rizumu/pinax-ratings,GeoNode/geonode-ratings,pinax/pinax-ratings,pinax/pinax-ratings,arthur-wsw/pinax-ratings,pinax/pinax-ratings,rizumu/pinax-ratings,arthur-wsw/pinax-ratings,arthur-wsw/pinax-ratings